Summary
Sponges settling on solid substrates which are separated by sediment bottoms compete for the limited space. Some species have solved this problem by occurring as epizoans, thus avoiding the risk of being expelled from the habitat. The supporting species on the other hand, are specialized in that they possess skeletogenous ectosomal structures and aquiferous processes to maintain their integrity and to escape starvation or suffocation. Although specimens are sometimes intimately interwoven no chimaerid mixing of tissues was observed.
Similar content being viewed by others
Literature
Borojevic, R., Lévi, P.: Le basopinacoderme de l'éponge Mycale contarenii (Martens). Technique d'étude des fibres extracellulaires basales. J. Microscopie 6, 857–862 (1967).
Brønsted, H. V., Carlsen, F. E.: A cortical cytoskeleton in expanded epithelium cells of sponge gemmules. Exp. Cell. Res. 2, 90–96 (1951).
Gross, J., Sokal, Z., Raugvie, M.: Structural and chemical studies on the connective tissue of marine sponges. J. Histochem. Cytochem. 4, 227–246 (1956).
Little, F. J.: Bispecific chimerid sponges from the Antarctic. Nature (Lond.) 211, 436–438 (1966).
Rützler, K.: Systematik und Ökologie der Poriferen aus Litoral-Schattengebieten der Nordadria. Z. Morph. Ökol. Tiere 55, 1–82 (1965a).
—: Substratstabilität als ökologischer Faktor im marinen Benthos, dargestellt am Beispiel adriatischer Poriferen. Int. Rev. ges. Hydrobiol. 50, 281–292 (1965b).
Rützler, K. The mangrove community, aspects of its structure, faunistics and ecology. Proc. Internat. Symposium on Coastal Lagoons, Mexico City (1970, in press).
Sarà, M.: Contributo alla conoscenza dei Poriferi del Mare Ligure. Ann. Mus. Civico St. Nat. Genova 70 207–244 (1958).
—: La fauna di Porifera delle grotte delle isole Tremiti. Studio ecologico e sistematico. Arch. Zool. ital. 46, 1–59, (1961).
Topsent, E.: Etude de spongiaires du Golfe de Naples. Arch. Zool. exp. gén. 63, 623–725 (1925).
Author information
Authors and Affiliations
Additional information
This work was supported in part by Smithsonian Research Foundation Grant Sg 068104. I thank Dr. H. Forstner (Innsbruck) for his assistance in the field. Miss M. Dwyer prepared the drawings.
Rights and permissions
About this article
Cite this article
Rützler, K. Spatial competition among porifera: Solution by epizoism. Oecologia 5, 85–95 (1970). https://doi.org/10.1007/BF00347624
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00347624